NAICS Code 335311 — Power, Distribution, and Specialty Transformer Manufacturing
National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 4 national industries under 33531 (Electrical Equipment Manufacturing).
| Code | 335311 |
|---|---|
| Title | Power, Distribution, and Specialty Transformer Manufacturing |
| Level | National Industry (6-digit) |
| Edition | NAICS 2022 edition |
| SBA size standard | 800 employees |
Official definition (2022 NAICS)
This U.S. industry comprises establishments primarily engaged in manufacturing power, distribution, and specialty transformers (except electronic components). Industrial-type and consumer-type transformers in this industry vary (e.g., step up or step down) voltage but do not convert alternating to direct or direct to alternating current.
Illustrative Examples:
Fluorescent ballasts (i.e., transformers) manufacturing
Substation transformers, electric power distribution, manufacturing
Distribution transformers, electric, manufacturing
Transmission and distribution voltage regulators manufacturing
Cross-References.
Is a business under 335311 "small"?
Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 335311 qualifies as a small business if it does not exceed 800 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.
Where 335311 sits in the hierarchy
| Level | Code | Title |
|---|---|---|
| Sector | 31-33 | Manufacturing |
| Subsector | 335 | Electrical Equipment, Appliance, and Component Manufacturing |
| Industry Group | 3353 | Electrical Equipment Manufacturing |
| NAICS Industry | 33531 | Electrical Equipment Manufacturing |
| National Industry | 335311 | Power, Distribution, and Specialty Transformer Manufacturing |
Related SIC codes
Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.
| SIC code | Title |
|---|---|
3548 | Electric and Gas Welding and Soldering Equipment |
3612 | Power, Distribution, and Specialty Transformers |
Related National Industry codes
335312— Motor and Generator Manufacturing335313— Switchgear and Switchboard Apparatus Manufacturing335314— Relay and Industrial Control Manufacturing
Not sure this is the right code?
Describe your business in plain English with the free NAICS code lookup, convert legacy codes with the SIC to NAICS crosswalk, or classify in bulk via the API (25 free calls/month).
Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.